Serena Williams celebrates after winning the first set against Coco Vandeweghe at the Sony Open Tennis tournament, Monday, March 24, 2014, in Key Biscayne, Fla. Williams went on to win the match 6-3, 6-1. (AP Photo/Lynne Sladky)

Sony Open Tennis

Serena Williams celebrates after winning the first set against Coco Vandeweghe at the Sony Open Tennis tournament, Monday, March 24, 2014, in Key Biscayne, Fla. Williams went on to win the match 6-3, 6-1. (AP Photo/Lynne Sladky)

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